Table 1.

Evaluation of dog aggression on a five-point frequency scale (0–4).

FREQUENCY
4	very high (at least 8 episodes/week)
3	high (5–7 episodes/week)
2	mild (2–4 episodes/week)
1	1 low (1 episode/week)
0	None
INTENSITY
4	very high (aggression in absence of threat and without stop)
3	high (aggression in absence of threat and with stop)
2	mild (aggression in presence of threat and with stop)
1	low (aggression in form of a threat)
0	none
DISTANCE
4	very high (within the social space of the proxemic sphere)
3	high (within the individual space of the proxemic sphere)
2	mild (following an attempt of physical contact)
1	low (following physical contact)
0	none